A
local Hong Kong contractor started using DustBubble at their sites
to control dust when workers use electric hammers to drill smallsize
holes in concrete walls. DustBubbles (DustBubble Ltd.) are
disposable dust collectors for DIY or industrial drills. They use a
combination of adhesion to the wall and the action of the drill itself
to catch virtually all the dust during the drilling process. initialed and funded this research toinvestigate its effectiveness on dust control and assess the viability
of using it in Hong Kong. In order to achieve the above objectives, an
experimental study has been designed and conducted to compare
the dust exposures between two groups of workers: one group drilling
the concrete without the use of DustBubble, the other with
DustBubble. Two variables have been analysed and compared:
respirable dust exposure and respirable silica dust exposure.